Features of the Kwikset 660 Single-Sided Deadbolt

The Kwikset 660 series is popular for its accessibility, straightforward installation, and wide range of options that cater to the residential market. Its key features include:

ANSI/BHMA Grade 3 Security: Understanding the Standard

This deadbolt is certified as Grade 3 by the American National Standards Institute (ANSI) and the Builders Hardware Manufacturers Association (BHMA). This is the basic security standard for residential door hardware. To achieve this rating, the lock must pass a series of tests for durability, strength, and security, including being tested for 200,000 cycles and withstanding two 75-pound blows. This certification indicates that the lock provides a functional deterrent against entry and is suitable for standard residential use where high security is not the primary concern.

Convenience and Fire Safety: The Thumb turn Advantage

The defining feature of a single-sided deadbolt is the thumb turn on the interior side of the lock. This design is mandated by building codes in many areas for fire safety. It allows occupants to quickly and easily unlock the door from the inside without needing a key during an emergency, ensuring a fast exit. This convenience is a primary reason for its popularity in residential settings.

About SmartKey® Re-key Technology

Available through special order, the SmartKey® feature allows you, the user, to rekey the lock yourself in seconds using a special learning tool. This can be a very convenient feature for landlords or anyone who needs to change keys frequently without calling a locksmith. However, as security professionals, we advise that early generations of this technology were found by security researchers to have vulnerabilities to specific bypass techniques. For applications requiring higher security against skilled or covert attacks, we strongly recommend a consultation to discuss our professionally rekeyable cylinders or an upgrade to a patented high-security system.

Our Professional Security Assessment: Understanding the Limitations

At Guardian Angel Lock & Security, our primary commitment is to the safety and security of our clients. Therefore, it is our professional duty to provide a clear and honest assessment of the products we service and sell.

Normally, we do not recommend this type of security deadbolt for critical applications. While this option is great for the modest budget, this type of lock offers low security and is vulnerable to common break-in techniques, such as lock picking and key bumping. It serves as a functional visual deterrent and a basic lock, but it does not contain the advanced internal mechanisms—such as security pins, sidebars, or telescopic pins—found in high-security cylinders that are specifically designed to resist these skilled attacks.

Furthermore, the very feature that makes a single-sided deadbolt convenient—the thumb turn—can become a security risk on doors with glass panels or sidelights. An intruder could break the glass, reach in, and simply unlock the door. For these specific entry points, we have other solutions we can recommend.

For your most important entry points—such as your home’s front door, back door, or primary business entrance—we strongly recommend upgrading to a patented, high-security lock from brands like MUL-T-LOCK or Medeco.

The Right Tool for the Right Job: Where a Kwikset Lock Makes Sense

While we advise against using a standard deadbolt for your primary security, there are situations where it is a perfectly appropriate and cost-effective choice:

• Interior Doors: For a home office, a storage closet, or a wine cellar, a Kwikset deadbolt provides excellent privacy and a basic level of security.
• Layered Security Points: It can be used on a secondary door, such as an enclosed porch screen door, as long as the main house door behind it is equipped with a high-security lock.
• Low-Risk Buildings: A shed or a detached workshop that doesn’t store high-value items can be adequately secured with a standard deadbolt.

Finding the Right Balance of Security and Budget

The Kwikset single-sided deadbolt is a reliable, affordable option for basic security needs and is often required for fire code compliance. Our goal is to ensure you have the right lock for the right door. Let our security experts consult with you to find the perfect balance that meets your needs and provides the peace of mind you deserve. We can assess your property and help you decide where to invest in high-security solutions and where a standard lock will suffice.

Kwikset® 660 Series Double Sided Deadbolts

As a full-service security provider, Guardian Angel Lock & Security offers a wide range of locking solutions to fit every need and every budget. One of the most recognizable names in the lock industry is Kwikset. The largest-selling deadbolt in America, the 660 series deadbolt provides tough, effective protection at an affordable price, making it a common choice for basic residential applications. Our role as your security partner is to help you navigate all available options, from standard hardware to high-security systems, so you can make the most informed decision for your property.

We believe in empowering our customers with honest information. While Kwikset deadbolts serve as a functional security measure, it is important to understand their features, the level of security they provide, and their ideal applications before making a choice.

Features of the Kwikset 660 Deadbolt

The Kwikset 660 series is popular for its accessibility, straightforward installation, and wide range of options that cater to the residential market. Its key features include:

ANSI/BHMA Grade 3 Security: Understanding the Standard

This deadbolt is certified as Grade 3 by the American National Standards Institute (ANSI) and the Builders Hardware Manufacturers Association (BHMA). This is the basic security standard for residential door hardware. To achieve this rating, the lock must pass a series of tests for durability, strength, and security, including being tested for 200,000 cycles and withstanding two 75-pound blows. This certification indicates that the lock provides a functional deterrent against entry and is suitable for standard residential use.

Convenience and Versatility

Kwikset locks are designed with the homeowner in mind, prioritizing user-friendly features. An adjustable latch and deadbolt ensure a fit on most standard doors, making it a versatile option for many homes. For enhanced security, a deadbolt should always supplement a locking knob or lever, and the Kwikset 660 is designed to be easily added as this critical second layer of protection.

Wide Variety of Finishes

Aesthetics are important, and Kwikset® offers a broad range of finishes to match your existing door hardware and home decor. Available options include: Polished Brass, Antique Brass, Satin Nickel, Antique Nickel, Polished Chrome, Satin Chrome, and Venetian Bronze.

About SmartKey® Re-key Technology

Available through special order, the SmartKey® feature allows you, the user, to rekey the lock yourself in seconds using a special learning tool. This can be a very convenient feature for landlords or anyone who needs to change keys frequently without calling a locksmith. However, as security professionals, we advise that early generations of this technology were found by security researchers to have vulnerabilities to specific bypass techniques. For applications requiring higher security against skilled or covert attacks, we strongly recommend a consultation to discuss our professionally rekeyable cylinders or an upgrade to a patented high-security system.

Our Professional Recommendation and Security Assessment

At Guardian Angel Lock & Security, our primary commitment is to the safety and security of our clients. Therefore, it is our professional duty to provide a clear and honest assessment of the products we service and sell.

Normally, we do not recommend this type of security deadbolt for critical applications. While this option is great for the modest budget, this type of lock offers low security and is vulnerable to common break-in techniques, such as lock picking and key bumping. It serves as a functional visual deterrent and a basic lock, but it does not contain the advanced internal mechanisms—such as security pins, sidebars, or telescopic pins—found in high-security cylinders that are specifically designed to resist these skilled attacks.

For your most important entry points—such as your home’s front door, back door, garage service door, or your primary business entrance—we strongly recommend upgrading to a patented, high-security lock from brands like MUL-T-LOCK or Medeco. These systems offer certified, tested protection against forced and covert entry and, most importantly, give you absolute, patented control over who can make a copy of your key.

The Right Tool for the Right Job: Where a Kwikset Lock Makes Sense

While we advise against using a standard deadbolt for your primary security, there are situations where it is a perfectly appropriate and cost-effective choice:

• Interior Doors: For a home office, a storage closet, or a wine cellar, a Kwikset deadbolt provides excellent privacy and a basic level of security.
• Layered Security Points: It can be used on a secondary door, such as an enclosed porch screen door, as long as the main house door behind it is equipped with a high-security lock.
• Low-Risk Buildings: A shed or a detached workshop that doesn’t store high-value items can be adequately secured with a standard deadbolt.

Finding the Right Balance of Security and Budget

The Kwikset deadbolt is a reliable, affordable option for basic and low-risk security needs. Our goal is to ensure you have the right lock for the right door. Let our security experts consult with you to find the perfect balance that meets your needs and provides the peace of mind you deserve. We can assess your property and help you decide where to invest in high-security solutions and where a standard lock will suffice.